volumes : 28 cm

Some issues are the official bulletin of the MSAWWA-MWPCA Conference

For water and wastewater-treatment operators across Montana

Some issues lack vol. numbering

Vols. for 1979- published by the Water Quality Bureau, Dept. of Health and Environmental Sciences ; for summer 1981- by the Water Quality Bur. of the State Dept. of Health and Environmental Sciences (in cooperation with the Montana Section, American Water Works Association, and the Montana Water Pollution Control Association) ; for fall 1993- published jointly by the Water Quality Bureau, Montana Water Environment Association and Montana Section, American Water Works Association ; for fall 1994- published jointly by the Water Quality Division, Montana Water Environment Association and Montana Section, American Water Works Association ; for fall 1996- by Montana Water Environment Association, Montana Section, American Water Works Association and Montana Dept. of Environmental Quality ; for fall 1997- Montana Dept. of Environmental Quality's Planning, Prevention and Assistance and the Permitting and Compliance Div

Description based on: Vol. 5, no. 3 (Oct., 1975); title from cover

Latest issue consulted: V. 37, issue 2 (fall 2007)

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